What are bytecodes and how does the JVM handle them

Question

I heard many times that Java implemments JIT(just-in-time) compilation, and its bytecodes which are portable across platforms get \"interpreted\" by JVM. However, I don\'t r

Answer 1

jcyang already provided a link to wikipedia, but this one is a better match to your question:

Java Bytecode

The Java Compiler compiles Java Source code to class files. The class's methods are translated to Byte Code and the Java virtual machine (JVM) interpretes this byte code. A Just In Time compiler (JIT) may be used to translate the byte code to machine code to speed up execution of class methods.